Question about 1986 Dodge Ramcharger

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My 1986 Dodge Ramcharger is having issues while in idle. While just waiting at a stop light or just having the car in idle period, the truck will begin to shake intensly and after 5-30 seconds will die suddenly. I can start it up right after, but this is a pain having to constantly start my car back up at a red light. I think its the carburator, but i dont know how to check and fix it. Please help.

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Have you tried setting the idle in drive? If you try that, have a helper setting in there with their foot on the brake and parking brake set. I've seen many high mileage vehicles, that wouldn't idle correctly. Other than an engine overhaul, we would set the idle in drive. At least it wouldn't die every time you came to a stop sign or red light. Yeah, when you put it in park or neutral, the idle would go high, but, you don't drive it in park or neutral.
You can get a carb kit for the carb, see if it helps? The carb kit should have all the instructions you need to adjust settings. In the past every carb kit I used had plenty of instructions. I looked at, they had a carb kit for your vehicle. Find the model number on your carb and make sure it matches their carb number.
If your carb is a holley, you can check the holley web site. I haven't been there in a long time, I don't know if they would have instructions for your carb?

Posted on Aug 06, 2017


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Posted on Jan 22, 2009

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SOURCE: truck dies when i stop or slow down

Here is the most common cause of surges and stalls and low idle rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Posted on Feb 17, 2009

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SOURCE: what is it

It's really hard to give a specific cause for something like this with out more information. If for instance it is a miss-firing cylinder, there are several possible causes for it ranging from a bad spark plug, bad 02 sensor or even a burnt valve. However there are a few items you can check and maintenance the can be preformed that may help out. At the very least it will eliminate them as a possible cause.

The most common cause of rough idle is worn out components. These include air cleaner, spark plugs, wires, cap and rotor. These are all items that should be replace at the time of a tune-up. If it hasn't had a tune in a while, that is a good place to start. This will also give you a chance to inspect the spark plugs. The condition and color of the electrode at the bottom end of the plug will give you a good indication as to how well the engine is performing. The first link I provided below will give you a way to compare what your plugs look like and what would cause that condition. Included with the items for a general tune-up, A good fuel injector cleaner should be added to a couple tanks of gas as well as a injector cleaner that runs through the intake manifold.
During the tune-up you should inspect all the vacuum lines and listen for any leaks while the car is running.

Before doing anything that's unnecessary it's a good idea to check the error codes. You do this by turning the ignition key on-off-on-off-on within five seconds. Only turn the key to the on position not the start position. If your odometer is digital the codes will be displayed there. Examples are P0303 and P1283. If your odometer is mechanical the codes will be displayed in a series of flashes, a pause and more flashes from the engine light. To be honest it's much easier to take the car to someplace like Auto Zone where they will read error codes for free then dealing with the flashing pause system. After you have the code (if any), you can check them at the second link I added below. Make sure to check both the Dodge specific codes and the generic codes.
These codes help by giving you specific information on any system that is not functioning properly.
Once you have recovered the engine diagnostic codes if any or you are at all unsure of any part of this solution please re-post.
Hope this helps.

Posted on Sep 24, 2009

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